Schwelm climate — normals and trends
Schwelm (Germany) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.3 °C and it receives 1,072 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (17.4 °C on average) and the coldest is January (1.1 °C). Rainfall peaks in December.
Schwelm averages 60 frost days, 3 hot days (≥ 30 °C) and 172 rainy days per year.
Schwelm has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The number of frost days there went from about 77 to 43 per year over the period.
The hottest day of the period reached 37.4 °C (on 25 July 2019) and the coldest -23.5 °C (on 27 January 1942).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
SchwelmNorth Rhine-Westphalia
- coords
- 51.29°, 7.29°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.3°C
Average daily high
12.5°C
Average daily low
6.2°C
Annual rainfall
1,072mm
Sunshine / day
7.5h
Mean relative humidity
80%
Average peak wind
18.6km/h
Seasonal range
16.3°C
Frost days (< 0 °C)
60 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
172 d/yr
Annual snowfall
52.4 cm
Average feels-like high
10.0 °C
Average feels-like low
3.1 °C
Average peak gust
38.4 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
10.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.44 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
37.4 °C
25 July 2019
Coldest day
-23.5 °C
27 January 1942
Wettest day
104 mm
14 July 2021
Windiest day
56.7 km/h
24 November 1984
Strongest gust
127.1 km/h
24 November 1984
Hottest feels-like
39.2 °C
25 July 2019
Coldest feels-like
-28.6 °C
27 January 1942
Snowiest day
18.5 cm
1 February 1953
Sunniest day
15.5 h
1 July 2018
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 4.5 °C | +1.4 °C | 173 mm | +77 mm |
| Feb | 6.1 °C | +1.7 °C | 35 mm | -46 mm |
| Mar | 12.5 °C | +4.2 °C | 20 mm | -65 mm |
| Apr | 16.3 °C | +3.8 °C | 80 mm | +6 mm |
| May | 19.5 °C | +2.7 °C | 60 mm | -25 mm |
| Jun | 23.6 °C | +3.9 °C | 82 mm | -10 mm |
| Jul | 23.9 °C | +2.5 °C | 93 mm | -9 mm |
| Aug | 24.6 °C | +3.4 °C | 46 mm | -49 mm |
| Sep | 19.2 °C | +1.3 °C | 102 mm | +18 mm |
| Oct | 13.0 °C | -0.1 °C | 122 mm | +39 mm |
| Nov | 9.4 °C | +1.9 °C | 82 mm | -12 mm |
| Dec | 7.1 °C | +2.8 °C | 45 mm | -59 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Schwelm?
Schwelm has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 9.3 °C and it receives 1,072 mm of precipitation per year.
What is the hottest day ever recorded in Schwelm?
The hottest day measured in Schwelm between 1940 and 2025 was 25 July 2019, reaching 37.4 °C.
What is the coldest day in Schwelm?
The coldest day measured in Schwelm between 1940 and 2025 was 27 January 1942, at -23.5 °C.
Does it snow in Schwelm?
Yes. Schwelm gets on average 52.4 cm of snow per year and has around 60 frost days.
Has the climate of Schwelm warmed?
Yes: Schwelm warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Schwelm?
The wettest day measured in Schwelm between 1940 and 2025 was 14 July 2021, with 104 mm of rain in 24 hours.
What was the windiest day in Schwelm?
The windiest day measured in Schwelm between 1940 and 2025 was 24 November 1984, with winds reaching 56.7 km/h.
What is the warmest month in Schwelm?
The warmest month in Schwelm is July (17.4 °C on average); the coldest is January (1.1 °C).
How much does it rain in Schwelm?
Schwelm receives on average 1,072 mm of precipitation per year, spread over about 172 rainy days.
Is it sunny in Schwelm?
Schwelm gets on average 7.5 hours of sunshine per day, roughly 2,738 hours per year over 1940-2025.
What is the biggest single-day snowfall in Schwelm?
The heaviest 24-hour snowfall measured in Schwelm between 1940 and 2025 was 1 February 1953, with 18.5 cm.
Are there tropical nights in Schwelm?
Yes: Schwelm has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Schwelm?
In Schwelm, between 1940 and 2025, the highest apparent temperature reached 39.2 °C on 25 July 2019, and the lowest was -28.6 °C on 27 January 1942.
Compare Schwelm with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Schwelm